Obviously taken around Christmas. This is The Cavern Club. Looking at Pauls hairstyle, this is not 1960 for The Beatles had not adopted the moptops by then. At Xmas 1962 they were in the Star Club, Hamburg. That leaves December 1961 as the most possible date. Unless John and Paul were there in 1963, not to have a gig, but joined in on some occasion. That sounds a bit unlikely to me however.

Obviously taken around Christmas. This is The Cavern Club. Looking at Pauls hairstyle, this is not 1960 for The Beatles had not adopted the moptops by then. At Xmas 1962 they were in the Star Club, Hamburg. That leaves December 1961 as the most possible date. Unless John and Paul were there in 1963, not to have a gig, but joined in on some occasion. That sounds a bit unlikely to me however.

As Chazz notes as well, the picture is somewhat of a puzzle. It's dated on April 5 1962 because of the big sign 'The Beatles' in the back. It looks like it must have been a part of some kind of comic act by John and Paul.